By Jack Barnett London’s FTSE 100 dipped today driven lower by investors ditching industrial giants on concerns over a slowdown in commodity demand amid a global economic slowdown. The capital’s premier index dropped 0.45 per cent to close below the 7,000 mark, while the domestically-focused mid-cap FTSE 250 index, which is more aligned with the health of the UK economy, fell 1.31 per cent to 17,125.29 points. Anxiety over the world’s largest economies cutting commodity consumption due to soaring inflation and higher interest rates weighed on big London-listed miners today. Fresnillo and BP sl…